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3 TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

3 2021

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Influence of cruise ship size on length of stay in port

Jurić Z., Bratić K., Dobrota D., Štolfa I.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2021

Vol. 15 No. 2

423--426

How long the cruise ship is staying in port? Does that value change during the year? Is the period linked to the number of passengers and the size of the ship? What influences overall period of the stay in port? These questions are just a sample of questions appeared before the research team which tried to establish rules of the Cruise ships seasonal pattern on the East Coast of the Adriatic Sea several questions appeared. Answers to cited questions are presented in this article, obtained by analysing the behaviour of cruise vessels in three biggest ports on the East Coast of the Adriatic Sea during the period of two years.

Distribution of the international marine traffic air pollutant emissions in the port of split

Mihanović L., Lalić B., Bratić K., Stazić L.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2021

Vol. 15 No. 3

611--614

The paper describes the initial part of the research into the impact of the Port of Split marine traffic on the environment and the city. The Port of Split is situated in the middle of the Adriatic Sea and it is one of busiest marine traffic regions in the Mediterranean. The Port consists of six geographically separated basins, two of them for smaller vessels, other four for the international marine traffic. The paper presents type and size of vessels in basins, engine size, stay in Port and finally quantity of the international marine traffic air pollutant emission per each basin. The distribution of the international marine traffic and its air pollutant emission pinpoint exactly main sources of the emissions in the area around the city and its dependency on various factors linked to the vessels, showing that the city is encircled by with multiple pollution sources.

Assessment of the concept of the new methodology for the evaluation of ship planned maintenance system

Stanivuk T., Stazić L., Vidović F., Bratić K.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2021

Vol. 15 No. 4

739--742

The paper presents an attempt to develop better and cheaper methodology for evaluation of the quality of the ships’ computerized Planned Maintenance System databases. A concept for the better methodology has been developed following many times verified rule that faster and cheaper is better. The concept of the methodology has been checked in operation, tested on four different databases. Results of the evaluation performed by the concept are compared with an expert evaluation using old, verified methodology, performed on same databases. Comparison valuated the concept, bringing the verdict if it is functioning or not, showing that the old and verified rule is not functioning every time.